Power / hp → PS
Convert Mechanical horsepower to Metric horsepower
Convert rates of energy transfer, including watts and explicitly defined horsepower. Convert Mechanical horsepower (hp) to Metric horsepower (PS). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Metric horsepower to Mechanical horsepower →
How to convert mechanical horsepower to metric horsepower
Mechanical horsepower is 550 foot-pounds-force per second. Metric horsepower uses 75 kilogram-force meters per second and has a different value.
Use x for the value in hp, b for the intermediate value in W, and y for the result in PS.
PS = hp × 745.6998715822702 ÷ 735.49875
Worked examples
10 hp ≈ 10.1386966542 PS
Step 1: (10 × 745.699871582) ≈ 7456.99871582 W.
Step 2: 7456.99871582 ÷ 735.49875 ≈ 10.1386966542 PS.20 hp ≈ 20.2773933085 PS
Step 1: (20 × 745.699871582) ≈ 14913.9974316 W.
Step 2: 14913.9974316 ÷ 735.49875 ≈ 20.2773933085 PS.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Mechanical horsepower
Mechanical horsepower (hp) measures power under the conventions above. The base value in W is (x × 745.699871582), where x is the numerical value in hp. Factors shown here are rounded for display; calculations use the stored factor.
About Metric horsepower
Metric horsepower (PS) measures power under the conventions above. The base value in W is (x × 735.49875), where x is the numerical value in PS. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Carry the same physical assumptions into subsequent physics calculations.
Mechanical horsepower to metric horsepower reference table
| Mechanical horsepower (hp) | Metric horsepower (PS) |
|---|---|
| 1 | 1.01386966542 |
| 5 | 5.06934832712 |
| 10 | 10.1386966542 |
| 25 | 25.3467416356 |
| 50 | 50.6934832712 |
| 100 | 101.386966542 |
| 1000 | 1013.86966542 |
Browse every power conversion →